Steel-Bodies National Duolian

“That has to be the most iconic resonator. It’s the one that everybody perceives as the sound of the Delta blues.

"It has a Duco painted finish. Very cheaply assembled, they often had what they called an ‘ebonised’ fretboard: basically, compressed paper. They produced them very cheaply and very quickly, and they have a tone that is incredible for blues guitar. It’s very tin can-ish – and loud as hell.”